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381 articles for “flexural”
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Mechanical Characterization of Prosopis Juliflora Fibre-Reinforced Epoxy Composites for Sustainable Automotive Applications
Abstract: This study investigates the potential of Prosopis juliflora (PJ) fibre as an eco-friendly, economical, and mechanically efficient reinforcement for epoxy-based polymer composites. Composite samples were produced using the compression moulding technique with epoxy-to-fibre weight ratios of 90:10, 85:15, and 80:20. Mechanical tests, including tensile, flexural, impact, and hardness evaluations, were conducted in accordance with relevant ASTM standards. The incorporation of PJ fibre resulted in significant improvements in the mechanical behaviour …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1720–1728 Read article
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Effect of Span, Load Intensity, and Beam Geometry on Stress and Deflection Behavior of RCC Beams
Abstract: This study investigates the influence of variations in beam geometry, span, load intensity, and permissible stresses on the structural behavior of reinforced concrete beams. Using classical bending and shear stress formulations, the effects of a 20% increase in key parameters were analytically evaluated. Results indicate that a 20% increase in beam span leads to a proportional 20% increase in beam depth, whereas a 20% increase in beam width or permissible …
Published in Journal of Structural Engineering and Management · Vol. 13, Issue 1, 2026 · pp. 9–22 Read article
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Mechanical Performance Evaluation of Brachyuran Shell Particle-Infused S-Glass Fibre Epoxy Polymer Composites
Abstract: Epoxy composites bio-filled with brachyuran crab shell powder and reinforced with S-glass fibres at different loadings (2%, 4%, and 6%) are tested for their mechanical properties in this work. Using modest amounts of filler significantly improved hardness, ultimate tensile strength, and flexural strength in the empirical data. The largest increase in hardness was 64.42% at 4% filler, up from 26.22% at 2%; however, there was a dramatic decrease to 13.11% …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 500–507 Read article
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Experimental Investigation of Hybrid Natural Fiber Reinforced Epoxy Composites Using Banana and Sugar Palm Fibers
Abstract: This paper is a research study that examines the mechanical and morphological properties of hybrid natural fiber reinforced epoxy composites manufactured from banana fibers (BF) and sugar palm fibers (SPF). Because the use of sustainable, lightweight, and cost effective materials in engineering continues to grow, many engineers are looking at the possibility of utilizing natural fiber reinforced polymer composites as alternatives to traditional man-made fiber composites. Hybrid composite laminate samples …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 195–205 Read article
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Fabrication and Characterization of PLA-CSP Composites via FDM for Biodegradable Food Packaging
Abstract: In light of the growing need for environmentally friendly alternatives to conventional plastic packaging, this study presents the design of a food-grade, biocompatible packaging material composed of Polylactic Acid (PLA) and packed with coconut shell powder (CSP). One of the most well-known thermoplastic polymers, PLA is produced from renewable resources like sugarcane or maize starch. Its nontoxicity, biodegradability, and adherence to food safety standards and regulations provide energy. Unfortunately, PLA's …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1016–1025 Read article
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Sustainable Development of Carbon–Sisal Reinforced Polyester Composites through Green Nanotechnology
Abstract: This study presents the sustainable development of carbon–sisal fiber reinforced polyester composites enhanced through green nanotechnology for improved mechanical performance and environmental compatibility. The hybrid composites were fabricated using varying fiber ratios - C1 (70% carbon, 30% sisal), C2 (60% carbon, 40% sisal), and C3 (50% carbon, 50% sisal) - with an optimized addition of 1 wt.% nano-silica (SiO2) synthesized via a green sol–gel route. The tensile, flexural, and impact …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1179–1194 Read article
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Mechanical and Functional Performance of PET–Kenaf Fiber Hybrid Composites for Domestic Household Applications
Abstract: This research presents a hybrid composite of recycled polyethylene terephthalate (PET) and Kenaf fibers for sustainable household applications. Polyethylene terephthalate from consumer bottles was reinforced with Kenaf fibers at volume fractions of 10–30% and composites were created through compression molding. Mechanical characterization involved tensile, flexural, impact, and hardness testing where appropriate and was standardized according to ASTM standards, while their interfacial interactions were characterized by imaging through SEM. Linear and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1482–1498 Read article
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Investigating the Mechanical Properties and Microstructure of AA 7074 Composites with Silicon Nitride Reinforcement
Abstract: This study investigates the mechanical and microstructural properties of AA 7074 aluminium alloy reinforced with 1%, 3%, and 5% by weight of silicon nitride (Si₃N₄), fabricated via the stir casting method, intended for structural aerospace applications. A thorough series of mechanical tests—comprising tensile, compression, hardness, impact, flexural, and wear tests—was performed to assess the influence of differing reinforcing content. The composite containing 5 wt% Si₃N₄ (SN5) demonstrated the most pronounced …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 268–281 Read article
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Interfacial Engineering of Carbon Fiber/Epoxy Laminates Using Functionalized Graphene Nanoplatelets: Experimental and Numerical Study
Abstract: Current research work studies the influence of amines(–NH₂) and carboxyl(–COOH) functionalized graphene nanoplatelets on the mechanical and thermomechanical behavior of unidirectional hybrid composite. Composites having different graphene concentration from 0 to 0.7 wt% were fabricated, characterized and analyzed for multiple testing - tensile testing, dynamic mechanical analysis (DMA) and Fourier transform infrared spectroscopy (FTIR). Tensile testing indicates better elastic modulus and tensile strength due to efficient load transfer between nanoparticles …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 61–77 Read article
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Effect of Barium Sulphate on Mechanical Properties of Woven Aloe Vera/Flax Reinforced Epoxy Composites
Abstract: Natural fiber-reinforced composites are becoming popular because of their lightweight, eco-friendly, and sustainable nature. Nevertheless, single-fiber composites tend to exhibit poor mechanical performance. This research paper has created a hybrid composite bonded with woven Aloe vera and flax reinforced with an epoxy bond. Barium sulphate (BaSO4) filler was added to further improve the properties. The fibers were subjected to sodium hydroxide (NaOH) to enhance bonding with the matrix and the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 355–365 Read article
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Investigation on mechanical performance of 3D printed PLA-Kraft Lignin composites
Abstract: Bio-based polymer composites are becoming more popular due to the growing need for sustainable and biodegradable materials in additive manufacturing. PLA-kraft lignin composites were created and their mechanical performance in fused deposition modeling (FDM) applications was assessed in this work. Polylactic acid (PLA) was mixed with Kraft lignin, a sustainable by-product of the paper industry, at weight percentages of 0%, 1%, 3%, 5%, and 7%. Melt blending was utilized to …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 1002–1015 Read article
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Performance Evaluation of Kevlar-Sisal-S-Glass Hybrid Composites with Ceramic Fillers for Structural Applications
Abstract: This study examines the mechanical properties of hybrid composite laminates reinforced with Kevlar, sisal, and S-glass fibers, and incorporating ceramic fillers—silicon carbide (SiC) and aluminum oxide (Al2O3)—within an epoxy matrix. The hand lay-up method was utilized to produce the laminates, ensuring a uniform fiber stacking sequence and including 10% filler material. Two composite variations were synthesized: one incorporating SiC and the other Al₂O₃, and both underwent tensile, flexural, hardness, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 1308–1322 Read article
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Experimental Study and Comparative Analysis of Fly Ash, GGBS, and Silica Fume in Nominal Concrete and Ternary Blended M25 Concrete
Abstract: This study examines the effects of partially substituting 30% of cement by weight with ternary supplemental cementitious materials (TSCMs) with mix proportions of M1, M2, and M3. These materials include fly ash (10%,15%,15% in M1, M2, and M3), ground granulated blast furnace slag (GGBS) (10%,8%,10% in M1, M2, and M3), and silica fume SF (15%,10%,5% in M1, M2, and M3) on the mechanical and durability properties of M25 grade concrete …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 43–50 Read article
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Comprehensive Performance Assessment of Silane-Treated Bio-Extracted Husk Fiber Reinforced Composites for Sustainable Construction Applications
Abstract: This research project is an extensive experimental study on bio-extracted husk fiber polymer composites with a focus on silane surface treatment. Bio-extracted rice husk fibers underwent an alkali-enzymatic hybrid extraction process followed by a 3-aminopropyltriethoxysilane (APTES) treatment for improved interfacial adhesion and matrix compatibility. Resin composites with treated and untreated fibers were fabricated with a weight ratio of 10%, 20%, and 30% via hand lay-up methods. A battery of mechanical …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 229–241 Read article
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Additive Manufacturing of Polymer-Based Advanced Composites: Mechanical Properties and Performance Evaluation
Abstract: Fabrication of large-scale and geometrically complex polymer-based advanced composites via fused deposition modelling (FDM) has been shown to be a promising technology for the production of such materials, however there are challenges in using short carbon fibre-reinforced polylactic acid (CF-PLA) which include obtaining high mechanical performance and maintaining dimensional accuracy with dynamic robot motion and complex interactions occurring between process parameters. The conventional approaches are mostly static feed rates or …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 1326–1335 Read article
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Ultrasonic Dispersion of Halloysite Nanotubes for Enhanced Mechanical, Thermal, and Morphological Performance of Epoxy Composites
Abstract: Halloysite nanotube (HNT)-reinforced epoxy nanocomposites were prepared by mixing HNT with bisphenol-A epoxy (LY 556) using ultrasonication, followed by compression molding. HNT contents of 0–5 wt.% were used. The composites were evaluated for tensile strength, flexural strength, Shore D hardness, Izod impact strength, and thermal stability using thermogravimetric analysis (TGA). The fractured tensile surfaces were also examined to understand the failure mechanism and interaction between HNT and the epoxy matrix. …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 212–226 Read article
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Light Weight Applications of Sandwich Panels in Various Industries
Abstract: Sandwich construction is of particular interest and widely used, because the concept is very suitable and amenable to the development of lightweight structures with high in-plane and flexural stiffness. Sandwich panels consist typically of two thin face sheets (or facings, or skins) and a lightweight thicker core. Commonly used materials for facings are composite laminates and metals, while cores are made of metallic and nonmetallic honeycombs, cellular foams, balsa wood …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 1, 2018 · pp. 9–14 Read article
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Performance of Polymer Modified Polypropylene Fiber Reinforced Concrete
Abstract: AbstractThe fiber reinforced concrete (FRC) is a composite material essentially consisting of conventional concrete reinforced by random dispersal of short, discontinuous and discrete fibers of specific geometry. The conventional plain concrete possesses high compressive strength, low tensile strength, poor impact strength, ductility, and little resistance to cracking and poor resistance to chemical attack. The presences of micro-cracks at the mortar aggregate interface are responsible for the inherent weakness of plain …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 2, 2019 · pp. 27–36 Read article
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Performance of Polyster Fibre Reinforced Concrete
Abstract: The present work deals with the results of experimental investigations on Recron 3s Polyester fibre reinforced concrete. Effect of these fibres on various strengths of concrete are studied. Firstly 0.1% fiber content is used and after that varied from 0.2 to 1.8% at an interval of 0.2% by weight of cement. Various strengths considered for investigation are compressive strength, flexural strength, split tensile, bond strength and shear strength. Cube of …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 2, 2019 · pp. 37–46 Read article
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A Study on Stress Block Parameters
Abstract: The compressive stress distribution in concrete, when mathematically modeled, can be defined by characteristic parameters known as stress block parameters. There are three such parameters, namely, shape factor, k1, depth factor, k2, and maximum stress factor, k3. There are various shapes of stress blocks, like parabolic, equivalent rectangular, equivalent triangular, and rectangular-parabolic. Various standard codes have adopted an equivalent rectangular stress block, whereas the Indian code has adopted rectangular-parabolic stress …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 3, 2019 · pp. 35–42 Read article